Laboratory investigation on calcium nitrate induced coupling reactions between nitrogen, phosphorus, sulfur, and metals in contaminated sediments
文献类型：期刊论文
| 作者 | Lin, Juan; Fu, Zhen; Ding, Shiming; Ren, Mingyin; Gao, Shuaishuai |
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2021 |
| 卷号 | 28期号:20页码:25866-25877 |
| 英文摘要 | In recent years, calcium nitrate addition has become a promising and usually used method for in situ sediment remediation. In this study, excess calcium nitrate was applied to column sediments to explore the coupling reactions of elements such as N, Fe, S, and P. Diffusive gradients in thin film (DGT) devices were used to collect labile substances at the sediment-water interface. Rhizon samplers were used to collect soluble substances in interstitial water. Results showed that nitrate addition turned the surface sediment into a more oxidized state, and mobile Fe, S, P, and As were removed in surface similar to 10-cm sediment. Due to different nitrate distributions in corresponding sediment depths, the consumption rates of NH3-N and soluble reactive P were faster in the surface sediment than that in deeper layers. Different from previous researches, the transient increase of soluble Fe was observed in this study, which was probably attributed to the solvation of FeS in the autotrophic denitrification process. According to our results, we suggest that a dosage of far less than 141 g N/m(2) and slightly more than 45.3 g N/m(2) can be used for the remediation of black and odorous sediment and control of internal P by calcium nitrate. |
| 源URL | [http://159.226.73.51/handle/332005/20665]  |
| 专题 | 中国科学院南京地理与湖泊研究所 |
| 推荐引用方式 GB/T 7714 | Lin, Juan,Fu, Zhen,Ding, Shiming,et al. Laboratory investigation on calcium nitrate induced coupling reactions between nitrogen, phosphorus, sulfur, and metals in contaminated sediments[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2021,28(20):25866-25877. |
| APA | Lin, Juan,Fu, Zhen,Ding, Shiming,Ren, Mingyin,&Gao, Shuaishuai.(2021).Laboratory investigation on calcium nitrate induced coupling reactions between nitrogen, phosphorus, sulfur, and metals in contaminated sediments.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,28(20),25866-25877. |
| MLA | Lin, Juan,et al."Laboratory investigation on calcium nitrate induced coupling reactions between nitrogen, phosphorus, sulfur, and metals in contaminated sediments".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 28.20(2021):25866-25877. |
入库方式： OAI收割
来源：南京地理与湖泊研究所
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